From patchwork Wed Feb 2 21:13:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matteo Croce X-Patchwork-Id: 12733479 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2DE68C433EF for ; Wed, 2 Feb 2022 21:13:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232515AbiBBVNd (ORCPT ); Wed, 2 Feb 2022 16:13:33 -0500 Received: from mail-wm1-f50.google.com ([209.85.128.50]:56031 "EHLO mail-wm1-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229990AbiBBVNd (ORCPT ); Wed, 2 Feb 2022 16:13:33 -0500 Received: by mail-wm1-f50.google.com with SMTP id r7so297708wmq.5; Wed, 02 Feb 2022 13:13:32 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=oaJCammhcYshGlWjPLBKRiVK+htd4TpvchdOh6MhZWs=; b=N0wTJJhBZUkOEzvXrq+x4PXHZIFKECf0a/bnuM5QnVf0FM39ZnMV1FD4BTsEhehtSe FFccnH4ZpbFOGce9CwPHxkytPtdLw3cYtp9TTHF5yTBlZ2kd11s5ovF9kpaZtAOiTsFp 6qMPbiMXFoZhL4PnNHZgCEMHxs1ljQ+T3yZEXAxEhRS8a5jIWe43psYiuzcd2MYJdXVr fwkOUNU4q3I2tXqernEKEoP6/ZX1R2WbBSoJh0XeIaHRhxGIO5+PY53O76piK6vlV8PM YTQeD2uluFeOjfirpN+jJVRRMc6XqVb0OMKOwmTsRSzqWsMqL3JupLizJXY+rnsdUjWl EyTA== X-Gm-Message-State: AOAM5337829lz7qyWNba0hpXwKmCA01zeJtvYzq3IJqsJhRRovRu4KtL IIyAooqqloPgiH0R32+GMo4= X-Google-Smtp-Source: ABdhPJzkrInO/l1EiTNnYJrpeeRkAjcl+VuBaFvgkUKdY0HTVIDjgXFwpx0I9OoQiXIBknmjeWxavQ== X-Received: by 2002:a1c:a9d7:: with SMTP id s206mr7602777wme.38.1643836411557; Wed, 02 Feb 2022 13:13:31 -0800 (PST) Received: from t490s.teknoraver.net (net-2-35-22-35.cust.vodafonedsl.it. [2.35.22.35]) by smtp.gmail.com with ESMTPSA id f5sm13914322wry.64.2022.02.02.13.13.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Feb 2022 13:13:31 -0800 (PST) From: Matteo Croce To: Alexei Starovoitov , bpf@vger.kernel.org Cc: Daniel Borkmann , Andrii Nakryiko , linux-kernel@vger.kernel.org Subject: [PATCH bpf-next v2 0/2] limit bpf_core_types_are_compat recursion Date: Wed, 2 Feb 2022 22:13:26 +0100 Message-Id: <20220202211328.176481-1-mcroce@linux.microsoft.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net From: Matteo Croce As formerly discussed on the BPF mailing list: https://lore.kernel.org/bpf/CAADnVQJDax2j0-7uyqdqFEnpB57om_z+Cqmi1O2QyLpHqkVKwA@mail.gmail.com/ Matteo Croce (2): bpf: limit bpf_core_types_are_compat() recursion selftests/bpf: test maximum recursion depth for bpf_core_types_are_compat() include/linux/btf.h | 5 + kernel/bpf/btf.c | 105 +++++++++++++++++- .../selftests/bpf/bpf_testmod/bpf_testmod.c | 3 + tools/testing/selftests/bpf/progs/core_kern.c | 14 +++ 4 files changed, 126 insertions(+), 1 deletion(-)